David Newman-Toker, MD, PhD, Associate Professor, Departments of Neurology, Ophthalmology, & Otolaryngology, The Johns Hopkins University School of Medicine
Subject
Nystagmus
Description
Typical spontaneous nystagmus associated with acute peripheral vestibular lesions is dominantly horizontal in vector and generally beats in one direction regardless of the eye position within the orbits. The nystagmus is usually present in the primary position, increases in gaze toward the direction of the fast phase, and decreases or disappears completely in gaze toward the direction of the slow phase. This pattern of vestibular nystagmus is said to obey "Alexander's law" (Video 2a-direction-fixed left-beating nystagmus in a patient with acute peripheral vestibulopathy). Disease/Diagnosis: Nystagmus.
Contributor Primary
David Newman-Toker, M.D., Ph.D., Associate Professor Departments of Neurology, Ophthalmology, and Otolaryngology, The Johns Hopkins University School of Medicine
Publisher
Spencer S. Eccles Health Sciences Library, University of Utah
Date
2009-05-11
Type
Image/MovingImage
Format
video/mp4
Relation is Part of
David Newman-Toker Collection; Neuro-Ophthalmology Virtual Education Library: NOVEL
